hzz
> install.packages("ggplot2")
Warning in install.packages :
cannot open URL 'http://www.stats.ox.ac.uk/pub/RWin/src/contrib/PACKAGES.rds': HTTP status was '404 Not Found'
also installing the dependencies ‘stringi’, ‘magrittr’, ‘colorspace’, ‘Rcpp’, ‘stringr’, ‘RColorBrewer’, ‘dichromat’, ‘munsell’, ‘labeling’, ‘digest’, ‘gtable’, ‘plyr’, ‘reshape2’, ‘scales’, ‘tibble’, ‘lazyeval’
然后它自动下了一堆压缩包
> library("ggplot2")
Error in library("ggplot2") : 不存在叫‘ggplot2’这个名字的程辑包